An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assembly
The main spindle bearing assembly (MSBA) plays an important role in the quality and service life of CNC machine tools and industrial equipment. The MSBA is usually evaluated based on the allowable wear or the stiffness independently combined with the vibration characteristics. Therefore, it is very...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | Manufacturing Review |
| Subjects: | |
| Online Access: | https://mfr.edp-open.org/articles/mfreview/full_html/2023/01/mfreview220057/mfreview220057.html |
| _version_ | 1797835264687603712 |
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| author | Pham Van Hung Minh Tam Pham Nguyen Thuy Duong |
| author_facet | Pham Van Hung Minh Tam Pham Nguyen Thuy Duong |
| author_sort | Pham Van Hung |
| collection | DOAJ |
| description | The main spindle bearing assembly (MSBA) plays an important role in the quality and service life of CNC machine tools and industrial equipment. The MSBA is usually evaluated based on the allowable wear or the stiffness independently combined with the vibration characteristics. Therefore, it is very important to determine the service life of MSBA when the wear reaches the allowable value, and the stiffness is reduced to the allowable value. This paper studies the simultaneous relationship of wear, stiffness, and vibration characteristics of MSBA in a CNC lathe. The results show that the service life of MSBA is different when evaluated based on each criterion (wear or stiffness). The stiffness of the MSBA is reduced to the allowable limit [J] = 200 N/μm with a Root Mean Square (RMS) value of about 5.75 mm/s2. The wear of the MSBA reaches the allowable limit [δa] = 5 μm with an RMS value of about 4.5 mm/s2. The life of MSBA calculated according to the stiffness criterion is about 1.18 times higher than that calculated based on the wear criterion. The average life of MSBA with standard lubrication according to the wear criterion reaches ∼15,799 h and RMS reaches ∼2.4508 mm/s2. |
| first_indexed | 2024-04-09T14:50:23Z |
| format | Article |
| id | doaj.art-d63a65dc6b504612abb72b845d0f4bcd |
| institution | Directory Open Access Journal |
| issn | 2265-4224 |
| language | English |
| last_indexed | 2024-04-09T14:50:23Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Manufacturing Review |
| spelling | doaj.art-d63a65dc6b504612abb72b845d0f4bcd2023-05-02T09:34:41ZengEDP SciencesManufacturing Review2265-42242023-01-0110610.1051/mfreview/2023005mfreview220057An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assemblyPham Van Hung0Minh Tam Pham1Nguyen Thuy Duong2https://orcid.org/0000-0001-9121-2970Ha Noi University of Science and Technology, No. 1 Dai Co Viet Stress, Hai Ba Trung DistrictVinh University of Technology Education, 117, Nguyen Viet Xuan StressHa Noi University of Science and Technology, No. 1 Dai Co Viet Stress, Hai Ba Trung DistrictThe main spindle bearing assembly (MSBA) plays an important role in the quality and service life of CNC machine tools and industrial equipment. The MSBA is usually evaluated based on the allowable wear or the stiffness independently combined with the vibration characteristics. Therefore, it is very important to determine the service life of MSBA when the wear reaches the allowable value, and the stiffness is reduced to the allowable value. This paper studies the simultaneous relationship of wear, stiffness, and vibration characteristics of MSBA in a CNC lathe. The results show that the service life of MSBA is different when evaluated based on each criterion (wear or stiffness). The stiffness of the MSBA is reduced to the allowable limit [J] = 200 N/μm with a Root Mean Square (RMS) value of about 5.75 mm/s2. The wear of the MSBA reaches the allowable limit [δa] = 5 μm with an RMS value of about 4.5 mm/s2. The life of MSBA calculated according to the stiffness criterion is about 1.18 times higher than that calculated based on the wear criterion. The average life of MSBA with standard lubrication according to the wear criterion reaches ∼15,799 h and RMS reaches ∼2.4508 mm/s2.https://mfr.edp-open.org/articles/mfreview/full_html/2023/01/mfreview220057/mfreview220057.htmlcnc machine spindlestiffness of cnc machine tool spindlewear of bearingbearing vibration |
| spellingShingle | Pham Van Hung Minh Tam Pham Nguyen Thuy Duong An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assembly Manufacturing Review cnc machine spindle stiffness of cnc machine tool spindle wear of bearing bearing vibration |
| title | An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assembly |
| title_full | An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assembly |
| title_fullStr | An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assembly |
| title_full_unstemmed | An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assembly |
| title_short | An experimental method for determining the service life and reliability of the CNC lathe main spindle bearing assembly |
| title_sort | experimental method for determining the service life and reliability of the cnc lathe main spindle bearing assembly |
| topic | cnc machine spindle stiffness of cnc machine tool spindle wear of bearing bearing vibration |
| url | https://mfr.edp-open.org/articles/mfreview/full_html/2023/01/mfreview220057/mfreview220057.html |
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